CN108048015B - Double-component silane modified polyether sealant for bonding wind power blade cover plate - Google Patents
Double-component silane modified polyether sealant for bonding wind power blade cover plate Download PDFInfo
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- CN108048015B CN108048015B CN201711435486.1A CN201711435486A CN108048015B CN 108048015 B CN108048015 B CN 108048015B CN 201711435486 A CN201711435486 A CN 201711435486A CN 108048015 B CN108048015 B CN 108048015B
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- modified polyether
- silane modified
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J171/00—Adhesives based on polyethers obtained by reactions forming an ether link in the main chain; Adhesives based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a two-component silane modified polyether sealant for bonding a wind power blade cover plate, which relates to a silane modified polyether bonding sealant technology and comprises a first component and a second component in parts by mass: the first component comprises: 25-50 parts of silane modified polyether resin, 5-15 parts of epoxy resin, 5-20 parts of nano calcium carbonate, 30-50 parts of triple superphosphate and 1-2 parts of carbon black; the second component comprises: 20-30 parts of plasticizer, 1-3 parts of curing agent, 5-20 parts of ammonia coupling agent and 5-10 parts of tin catalyst. According to the invention, the epoxy resin which is the same as the wind power blade material is introduced into the silane modified polyether system, so that the advantages of the epoxy resin and the room temperature vulcanized silicone rubber are integrated, the properties of flexibility, high temperature resistance and the like of the silane modified polyether sealant are maintained, the epoxy resin has the characteristic of strong cohesive force, the problem of fracture caused by stress is effectively solved, and the high adhesion strength and durability of the wind power blade cover plate are realized.
Description
Technical Field
The invention relates to the technical field of silane modified polyether bonding sealants, in particular to a two-component silane modified polyether sealant for bonding a wind turbine blade cover plate.
Background
In the field of wind power manufacturing, the bonding sealing material not only needs to have good flexibility, but also needs to have strong bonding strength and can bear large load. The typical application is the bonding of cover plates at the bottom of the blade, and the cover plate with the diameter of 2m needs to bear about 300kg after being bonded; on the other hand, the blades are influenced by wind power and outdoor climate change when running and waving in service; and the traditional cover plate is fixed by bolts, so that the fixation failure is caused by the strong action of internal stress during the service process.
Therefore, a technical solution for providing a sealant for bonding an electric blade cover plate with high bonding strength and less possibility of breaking is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the double-component silane modified polyether sealant for bonding the cover plate of the wind power blade, which has high bonding strength and can solve the problem of fracture caused by stress.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a two-component silane modified polyether sealant for bonding a wind power blade cover plate comprises the following components: the paint comprises a first component and a second component, and is prepared from the following components in parts by mass:
the first component comprises:
on the basis of the technical scheme, the molecular structural formula of the silane modified polyether resin is as follows:
wherein R is-CH3，R1is-CH2CH3，R2is-CH2CH2CH3。
Based on the technical scheme, the molecular weight of the silane modified polyether resin is more than 2000.
On the basis of the technical scheme, the epoxy resin is bisphenol A type epoxy resin.
On the basis of the technical scheme, the nano calcium carbonate has the particle size of 80-110 nm.
On the basis of the technical scheme, the plasticizer is one or more of diisodecyl phthalate, diisononyl phthalate and polyether.
On the basis of the technical scheme, the silane coupling agent is one or two of gamma-aminopropyltrimethoxysilane, gamma-aminopropyltriethoxysilane and N-beta (aminoethyl) -gamma-aminopropyltrimethoxysilane.
On the basis of the technical scheme, the tin catalyst is one or more of dibutyltin dilaurate, dibutyltin diacetate and stannous octoate
Compared with the prior art, the invention has the advantages that:
1. according to the invention, epoxy resin which is the same as the material of the wind power blade is introduced into a silane modified polyether system, so that the advantages of the epoxy resin and room temperature vulcanized silicone rubber are integrated, the properties of flexibility, high temperature resistance and the like of the silane modified polyether sealant are maintained, the epoxy resin has the characteristic of strong cohesive force, the tensile strength reaches 6.0MPa, and the problem of fracture caused by stress is effectively solved. Meanwhile, the epoxy resin is added in the preparation process, the adhesion to the blade material is improved, the adhesion strength to the wind power blade reaches 5.0MPa, and the high adhesion strength and the durability of the wind power blade cover plate are realized.
2. The preparation process is simple, and the two components can be mixed for operation and convenient use.
Detailed Description
The present invention will be described in further detail with reference to examples.
The embodiment of the invention provides a two-component silane modified polyether sealant for bonding a wind power blade cover plate, which comprises the following steps: the paint comprises a first component and a second component, and comprises the following components in parts by mass:
the first component comprises:
the second component comprises:
according to the invention, the epoxy resin which is the same as the wind power blade material is introduced into the silane modified polyether system, so that the advantages of the epoxy resin and the room temperature vulcanized silicone rubber are integrated, the properties of flexibility, high temperature resistance and the like of the silane modified polyether sealant are maintained, the epoxy resin has the characteristic of strong cohesive force, the tensile strength reaches 6.0MPa, and the problem of fracture caused by stress is effectively solved. Meanwhile, the epoxy resin is added in the preparation process, the adhesion to the blade material is improved, the adhesion strength to the wind power blade reaches 5.0MPa, and the high adhesion strength and the durability of the wind power blade cover plate are realized. The preparation process is simple, and the two components can be mixed for operation and use conveniently.
The molecular structural formula of the silane modified polyether resin is as follows:
wherein R is-CH3，R1is-CH2CH3，R2is-CH2CH2CH3。
The molecular weight of the silane modified polyether resin is more than 2000.
The epoxy resin is bisphenol A epoxy resin.
The nano calcium carbonate has a particle size of 80-110 nm.
The plasticizer is one or more of diisodecyl phthalate, diisononyl phthalate and polyether.
The silane coupling agent is one or two of gamma-aminopropyl trimethoxy silane, gamma-aminopropyl triethoxy silane and N-beta (aminoethyl) -gamma-aminopropyl trimethoxy silane.
The tin catalyst is one or more of dibutyltin dilaurate, dibutyltin diacetate and stannous octoate.
This is illustrated in detail by the 3 examples below.
Example 1
The embodiment provides a two-component silane modified bonding sealant for bonding a wind power blade cover plate, which comprises a first component and a second component in parts by mass:
the first component comprises:
the second component comprises:
example 2
The embodiment provides a two-component silane modified bonding sealant for bonding a wind power blade cover plate, which comprises a first component and a second component in parts by mass:
the first component comprises:
the second component comprises:
example 3
The embodiment provides a two-component silane modified bonding sealant for bonding a wind power blade cover plate, which comprises a first component and a second component in parts by mass:
the first component comprises:
the second component comprises:
example 4
And (3) performance testing: mixing the first component and the second component in the ratio of 10:1, and testing
The performance test processes of the embodiments 1 to 3 are the same, and the specific steps are as follows:
(1) and (3) testing the bonding strength: the material is an epoxy resin composite sheet, glue solution is coated on the surface of an adhered test piece, then the two test pieces are overlapped, the adhering area is 25mm x 12mm, the thickness of an adhesive layer is 3mm, the two test pieces are cured for 14 days under the standard condition of 23 +/-2 ℃ and the relative humidity of 50 +/-5%, and the shear strength reflecting the adhesive strength is tested according to GB/T7124.
(2) Open time test: extruding the mixed glue solution onto the surface of a plastic film at the temperature of 23 +/-2 ℃ and the relative humidity of 50 +/-5%, wherein the thickness is about 2-3 mm, the length is more than 100mm, slightly touching the glue layer with fingers every 1 minute until the glue solution does not stick to the fingers any more, and recording the time from extrusion to non-sticking to the fingers, namely the operation opening time.
(3) Tensile strength and elongation at break test: and preparing the mixed glue solution into a 3.0 +/-0.1 mm glue piece in a polytetrafluoroethylene mould, curing for 7 days at the temperature of 23 +/-2 ℃ and the relative humidity of 50 +/-5%, and then testing according to GB 528.
(4) Tensile shear fatigue test: and (3) preparing a tensile shear test piece, curing for 14 days under standard conditions, observing the bonding effect after 100 ten thousand cycles of tensile and compression according to a tensile shear fatigue test, wherein the set reference value is 2.0MPa, and the amplitude is 0.6 MPa.
The results of the performance tests of examples 1-3 are shown in Table 1.
Table 1, examples 1 to 3 Performance test results
And (4) analyzing results: as can be seen from Table 1, the addition of the bisphenol A epoxy resin effectively improves the bonding strength, and the invention adopts the common epoxy composite blade material of the wind power blade, is more specific to the tensile shear fatigue test of the blade in the service process, and the bonding is not damaged after 100 ten thousand cycles of cyclic fatigue test, thereby effectively solving the problem of elastic bonding of the wind power blade cover plate.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (4)
1. The utility model provides a wind-powered electricity generation blade apron bonds with two ingredient silane modified polyether sealant which characterized in that: the paint comprises a first component and a second component, and comprises the following components in parts by mass:
the first component comprises:
the second component comprises:
the molecular structural formula of the silane modified polyether resin is as follows:
wherein R is-CH3，R1is-CH2CH3，R2is-CH2CH2CH3；
The molecular weight of the silane modified polyether resin is more than 2000;
the particle size of the nano calcium carbonate is 80-110 nm;
the plasticizer is one or more of diisodecyl phthalate, diisononyl phthalate and polyether.
2. The two-component silane modified polyether sealant for bonding the wind turbine blade cover plate as claimed in claim 1, which is characterized in that: the epoxy resin is bisphenol A type epoxy resin.
3. The two-component silane modified polyether sealant for bonding the wind turbine blade cover plate as claimed in claim 1, which is characterized in that: the silane coupling agent is one or two of gamma-aminopropyl trimethoxy silane, gamma-aminopropyl triethoxy silane and N-beta (aminoethyl) -gamma-aminopropyl trimethoxy silane.
4. The two-component silane modified polyether sealant for bonding the wind turbine blade cover plate as claimed in claim 1, which is characterized in that: the tin catalyst is one or more of dibutyltin dilaurate, dibutyltin diacetate and stannous octoate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435486.1A CN108048015B (en) | 2017-12-26 | 2017-12-26 | Double-component silane modified polyether sealant for bonding wind power blade cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435486.1A CN108048015B (en) | 2017-12-26 | 2017-12-26 | Double-component silane modified polyether sealant for bonding wind power blade cover plate |
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| Publication Number | Publication Date |
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| CN108048015A CN108048015A (en) | 2018-05-18 |
| CN108048015B true CN108048015B (en) | 2021-04-27 |
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| CN201711435486.1A Active CN108048015B (en) | 2017-12-26 | 2017-12-26 | Double-component silane modified polyether sealant for bonding wind power blade cover plate |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109266282A (en) * | 2018-09-10 | 2019-01-25 | 广州博邦化学科技有限责任公司 | A kind of compound silane modified polyether heat-conducting glue of one-component and preparation method thereof |
| CN109337630B (en) * | 2018-10-22 | 2022-12-13 | 广州市垠瀚能源科技有限公司 | Preparation method of double-component room-temperature fast-curing anti-seismic heat-conducting structure adhesive |
| CN109467910A (en) * | 2018-10-31 | 2019-03-15 | 深圳市顾康力化工有限公司 | A kind of resistance to thermal-enhanced sealing hybrid material and preparation method thereof |
| CN109370198A (en) * | 2018-10-31 | 2019-02-22 | 江苏伊顿航天材料股份有限公司 | A kind of space flight sealing ring sealant |
| CN109628046A (en) * | 2018-12-26 | 2019-04-16 | 湖北回天新材料股份有限公司 | The controllable two-component silane modified polyether seal glue of curing rate |
| CN110256994B (en) * | 2019-07-12 | 2022-01-04 | 山西省建筑科学研究院有限公司 | High-adhesion silane modified polyether sealant for prefabricated building and preparation method thereof |
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| CN104293273A (en) * | 2014-10-17 | 2015-01-21 | 苏州之诺新材料科技有限公司 | Epoxy resin modified dual-component silicyl-terminated polyether adhesive |
| CN106833480A (en) * | 2017-01-16 | 2017-06-13 | 武汉久邦宁新材料科技有限公司 | A kind of fire retardant elastic adhesive of double-component normal temperature cure and preparation method thereof |
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